feat: Helm chart support extra volumes (#2982)

helm/README.md

@@ -56,6 +56,8 @@ RustFS helm chart supports **standalone and distributed mode**. For standalone m
 | config.rustfs.kms.vault.vault_mount_path | string | `"transit"`| The vault mount path, only works if `vault_backend` equals `vault-transit` . |
 | config.rustfs.kms.vault.default_key | string | `"transit"`| The master key id for RustFS. |
 | extraEnv | map | `[]` |  Extra environment variables for RustFS container. |
+| extraVolumes | list | `[]` | Extra volumes to add to the pod spec. Supported in both standalone (Deployment) and distributed (StatefulSet) modes. |
+| extraVolumeMounts | list | `[]` | Extra volume mounts to add to the RustFS container. Supported in both standalone (Deployment) and distributed (StatefulSet) modes. |
 | containerSecurityContext.capabilities.drop[0] | string | `"ALL"` |  |
 | containerSecurityContext.readOnlyRootFilesystem | bool | `true` |  |
 | containerSecurityContext.runAsNonRoot | bool | `true` |  |

helm/rustfs/templates/deployment.yaml

@@ -127,12 +127,18 @@ spec:
               mountPath: /opt/tls/client_ca.crt
               subPath: client_ca.crt
             {{- end }}
+            {{- with .Values.extraVolumeMounts }}
+            {{- toYaml . | nindent 12 }}
+            {{- end }}
             - name: logs
               mountPath: {{ $logDir }}
               subPath: logs
             - name: data
               mountPath: /data
       volumes:
+      {{- with .Values.extraVolumes }}
+      {{- toYaml . | nindent 8 }}
+      {{- end }}
       {{- if .Values.mtls.enabled }}
         - name: server-cert
           secret:

helm/rustfs/templates/statefulset.yaml

@@ -141,6 +141,9 @@ spec:
               mountPath: /opt/tls/ca.crt
               subPath: ca.crt
             {{- end }}
+            {{- with .Values.extraVolumeMounts }}
+            {{- toYaml . | nindent 12 }}
+            {{- end }}
             - name: logs
               mountPath: {{ $logDir }}
               subPath: logs
@@ -153,8 +156,9 @@ spec:
             - name: data
               mountPath: /data
             {{- end }}
-      {{- if .Values.mtls.enabled }}
+      {{- if or .Values.mtls.enabled .Values.extraVolumes }}
       volumes:
+        {{- if .Values.mtls.enabled }}
         - name: server-cert
           secret:
             secretName: rustfs-server-tls
@@ -175,6 +179,10 @@ spec:
                 path: client_key.pem
               - key: ca.crt
                 path: client_ca.crt
+        {{- end }}
+        {{- with .Values.extraVolumes }}
+        {{- toYaml . | nindent 8 }}
+        {{- end }}
       {{- end }}
   volumeClaimTemplates:
     - metadata:

helm/rustfs/values.yaml

@@ -130,6 +130,9 @@ extraEnv: [] # This is for setting extra environment variables in the rustfs con
 #     value: "EC:4"
 
 
+extraVolumes: []
+extraVolumeMounts: []
+
 # This section builds out the service account more information can be found here: https://kubernetes.io/docs/concepts/security/service-accounts/
 serviceAccount:
   # Specifies whether a service account should be created